baber/WOPTO huggingface dataset:
Patent GB-1091272-A (GB)
Title: Improvements in sound reproduction in television reception
Inventor: ROUT ERIC RAYMOND
IPC: H04N7/084
Filed: 1966-01-19
Abstract: 1,091,272. Pulse modulation systems. BRITISH BROADCASTING CORPORATION. Sept. 13, 1966 [Jan. 19, 1966], No. 2545/66. Heading H4L. In a demodulator for position-modulated pulses carrying the sound signals and situated between the leading edge of the line sync. pulse and the end of the line blanking interval of a television signal, the line synchronizing signals are selected at 13, and differentiated and limited at 14 to produce sharp pulses corresponding to the leading edges of the line sync. pulses which are supplied to a gate pulse generator 15 generating a gating pulse to open gate 11 for a period corresponding to the limits of the range of movement of the position-modulated pulses. The output of 14 also controls an oscillator 16 generating a damped sine wave which is fed as a reference wave to a sampling circuit 12 receiving the position-modulated pulses. It is arranged that a substantially linear portion of the reference waveform extends over the range of modulation of the pulses. The resulting amplitude-modulated pulses are fed via a lowpass filter to the terminal 18. A line flywheel sync. circuit may be incorporated.
Patent GB-709477-A (GB)
Title: Improvements in and relating to multi-stage steam turbines
IPC: F01K7/18
Filed: 1951-02-01
Abstract: 709,477. Steam turbines. RODER, K. A. Feb. 1, 1951 [April 28, 1949; June 7, 1949; July 25, 1949], No. 2562/51. Class 110(3) In a multi-stage non-condensing steam turbine having at least two stages' containing governor controlled groups of live steam nozzles, the first of the stages receiving live steam for partial loads and the succeeding stage additional live steam for full load, the succeeding stage having additional nozzles receiving the steam from the preceding stage extending circumferentially adjacent the live steam nozzles, the succeeding live steam stage is followed by one or more stages of a different diameter. The steam turbine shown, has two gov- 'ernor controlled live steam stages b and c supplied with steam through conduits r and w. The steam which leaves the stage b passes through the nozzles s of the stage c. The steam leaving the stage c is further expanded in stages d which are of a different diameter to the stage c before being discharged through, the conduit j. The stages b and c are housed in a common casing u with a partition x between them. In modifications of this arrangement, impulse or reaction stages are arranged between the stages b and c. In another embodiment the stages d are reaction stages. The stages b and c may be arranged in separate casings or on separate shafts, each driving an electric generator, which may rotate at different speeds. The high pressure stages may also discharge into several low-pressure sections. The high pressure and low pressure sections may also have separate shafts and rotate at different speeds with gearing between them.
Patent GB-360753-A (GB)
Title: Process for the production of sulphonated oil preparations
Filed: 1931-01-26
Abstract: Sulphonated oil preparations having improved wetting, softening, &c. properties are prepared from higher aliphatic poly carboxylic acids having at least eight carbon atoms by (1) reducing the carboxylic groups to alcoholic groups and sulphonating, (2) reducing some of the carboxylic groups to alcoholic groups, esterifying the remaining carboxylic groups with alcohols or phenols and then sulphonating, or (3) esterifying the carboxylic groups with alcohols or phenols reducing some of the ester groups and then sulphonating the resulting hydroxyesters.  The polybasic acids may be prepared by adding a hydrogen halide to an unsaturated carboxylic acid, treating with potassium cyanide and saponifying the resulting nitrite.  In examples: (1) ricinoleic acid is treated with hydrobromic acid in acetic acid solution, and the addition product converted into a nitrite by means of potassium cyanide.  After saponification, the resulting hydroxydicarboxylic acid is esterified with n-butyl alcohol, and reduced with sufficient sodium in ethyl alcohol to reduce one ester group, whereby octadecanediolcarboxylic-n-butyl-ester is obtained.  This is sulphonated with sulphuric acid: (2) the hydroxydicarboxylicdi-iso-butylester prepared in the first example is treated with sufficient sodium and alcohol if desired in the presence of hydrogen under pressure to reduce both ester groups. The nondecanetriol produced is then sulphonated: (3) nondecanoldicarboxylic acid prepared as in the first example is reduced with hydrogen, using finely divided copper as catalyst, until one carboxylic group is reduced.  The resulting hydroxycarboxylic acid is esterified with iso-propyl alcohol, in the presence of chlorsulphonic acid, and then sulphonated; (4) the nondecanoldicarboxylic acid is esterified with phenol in the presence of phosphorus trichloride, the ester reduced with the requisite quantity of sodium and alcohol to reduce one ester group and the resulting hydroxyester sulphonated.  Specification 344,829 is referred to.
Patent GB-657012-A (GB)
Title: Improvements in the type bar actuating mechanism for typewriters
IPC: B41J7/02
Filed: 1949-01-31
Abstract: 657,012. Typewriters. TOMBOLINI, A. Jan. 31, 1949, No. 2600. Convention date, Jan. 31, 1948. [Class 100 (iv)] A type-bar 2 is constructed so that its rear end 21, 2<SP>11</SP> may be inserted into a slot in the usual semicircular type-bar carrying segment of a typewriter, to detachably engage with an operating plate 1 having a shape 1<SP>1</SP>, 1<SP>11</SP> complementary with the rear end of the type-bar, the type-bar 2 and the plate 1 lying in the same plane as one another. Action is imparted to the plate 1 by a pulling element attached at point 8 of the plate 1 which is pivoted on a semicircular axis 1a in the segment. The drive to the type bar is imparted by the part 1<SP>11</SP> while the recess 11 prevents the type-bar from becoming unhooked from the plate under the impact of typing and the impact of the bar at its final rest position; such unhooking is further avoided by a spring 4 which is, at one end, attached to the plate 1, and at the other overlies the hooked end 2<SP>11</SP> of the type bar 2. Specification 461,183 is referred to.
Patent GB-741484-A (GB)
Title: Improvements in or relating to gas flow responsive electric switch devices
IPC: H01H35/40
Filed: 1953-01-29
Abstract: 741,484. Magnetic switches. HAYNES, J. K. Jan. 29, 1954 [Jan. 29, 1953], No. 2618/53. Class 38(5) A switching device operable by the flow of gas through a conduit a comprises a pivoted see-saw lever e carrying a permanent magnet f and a vane g and having an adjustable counter-balance weight h. A further pivoted see-saw lever n arranged on the other side of a non-magnetic wall o carries a mercury switch j and a permanent magnet k and has a counter-balance weight m. The arrangement is such that when the lever e is moved counter-clockwise by the gas flow the lever n is moved clockwise by the magnets f, k and the switch j makes or breaks a circuit. On cessation of the gas flow the device is restored to its original condition.
Patent GB-649908-A (GB)
Title: Improvements in or relating to rotary numbering boxes
IPC: B41K3/10
Filed: 1948-01-28
Abstract: 649,908. Number-printing apparatus. MAGNOID (BRISTOL), Ltd., MILES, L. G., and TUCKER, G. E. R. Jan. 28, 1948, No. 2621. [Class 100 (ii)] In a rotary numbering-box comprising a number of figure-wheels 15 rotatably mounted on a spindle 14 and each wheel having a ratchetwheel 16 coacting with a spring-pressed pawl 20 retaining the figure-wheels in a printing position, the pawls 20 are disengaged from the ratchet-wheels by eccentric members 34 removably mounted on the numbering box. The eccentric members 34 may be in the form of ribs eccentrically formed on an enlarged portion 33 of a shaft 32 so that the ribs, upon rotation of the shaft by a hand lever 35, travel inwardly in a series of slots 25 in a base part 13 of a U- shaped housing of the numbering box, and thus effect the disengagement of the pawls 20 from the ratchet-wheels 16. In modified forms the ribs 34 may be concentric on the enlarged portion 33 which is eccentric about the axis of the shaft 32, or the portion 33 itself may be eccentric and directly engage the tail portions 24 of the pawls 20. The shaft 32 is mounted in end-plates 29 by means of circular spring clips 36 so that the members 34 may be readily attached, by means of pins 30 projecting inwardly of the end-plates 29, to any numbering box having mating holes to accept the pins 30. The number-wheels are advanced by a pawl 18 pivoted on a frame 17 swinging about the spindle 14. The number-wheels 15 are removable from the box when the pawls 20 are in the disengaged position by axially sliding the spindle 14 from the housing.
Patent GB-581364-A (GB)
Title: Improvements relating to short-wave electric discharge devices
IPC: H01J21/36
Filed: 1943-02-17
Abstract: 581,364. Thermionic valves. COSSOR, Ltd., A. C. and SPEIRS, J. M. S. Feb. 17, 1943, No. 2635. [Class 39 (i)] In an electron discharge device the grid and cathode are mechanically supported by an annular leading-in disc 1 and the connection is by a bayonet joint. The grid-cathode assembly for example may be held between two plates 12 and 13, having resilient tabs which co-operate in bayonet joint fashion with the slots 22 in plate 1. The cathode 14 is supported on mica spacers 15 and 16 which are supported by the grid support wires 17 and 18. The grid wires 19 are secured to wires 17 and 18. The cathode and grid leads are sealed through the nipple 4. The anode comprises a plate with resilient tabs for effecting a bayonet joint with plate 2 and having a conical projecting portion to decrease the grid anode spacing. The above plate is secured to a plain plate to complete the jointing construction. Both grid and anode units may be built together by welding and secured firmly in their discs 1 and 2 by soldering.
Patent GB-1494752-A (GB)
Title: Sound reproduction systems
IPC: H04S3/02
Filed: 1975-03-10
Abstract: 1494752 Sound reproduction systems NATIONAL RESEARCH DEVELOPMENT CORP 10 March 1975 [26 March 1974] 2685/77 Divided out of 1494751 Heading H4R The description is the same as that in the parent Specification, but the claims relate to a sound reproducing system in which at least three loudspeakers are fed with signals derived from pressure (i.e. omnidirectional) and velocity (i.e. directional or difference) input signal components via devices (e.g. shelf filters) such that the ratio of the gains for pressure over velocity components for frequencies above a predetermined band exceeds that for frequencies below the band; in other words the gain variation for pressure components exceeds that for velocity components.
Patent GB-477195-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B35/08
Filed: 1937-01-30
Abstract: 477,195. Sewing-machines. ALMOND, Ltd., D., and ALMOND, D. Jan. 30, 1937, No. 2754. [Class 112] For making mocassin slippers, a sewing- machine has a pair of toothed wheels which crimp the edge of the vamp and secure the crimps against subsequent deformation by stitching. The vamp C is fed between the toothed wheels a, b to produce the crimps c and simultaneously a row of permanent stitches is sewn into the crimps so that no deformation occurs when the vamp C is sewn to the facing F to form the slipper. The wheel b is carried by the presser bar and may be inclined to the wheel a to afford clearance for the needle d.
Patent GB-954276-A (GB)
Title: A sieve tension tester
Inventor: TAYLOR ALAN
IPC: B07B1/46
Filed: 1962-01-25
Abstract: 954,276. Measuring tension in sheets. HENRY SIMON Ltd. Jan.17, 1963 [Jan. 25, 1962], No. 2794/62. Heading G1W. To determine the tension in a sieve a micrometer dial gauge is used to measure the depression of the sieve under a given load, different loads being applied and comparative readings being taken from which the tension can be calculated. As shown Fig. 1 a gauge 9 is rigidly fixed on a rod 8 of a rigid base structure 4, 5 which rests on a frame 1 and cross members 3 of a sieve. The gauge has a sleeve 10 within which a spindle 11, geared to an indicator 12, is slidable. The spindle carries a weight fan 14. In operation a lever arm 15 is used to raise an anvil 13 of the spindle 11 from the surface of the sieve cover 2. A weight 16 is placed on the pan, the lever arm is released and the anvil falls on to the sieve cover and depresses it. The amount of the depression is noted from the indicator 12. The weight 16 is then removed, a different size of weight is substituted and the operation is repeated. By comparison of the two readings the tension of the sieve can be calculated. It is stated that raising of the anvil a distance of about # of an inch above the cover 2 is sufficient. The weight of the weight fan 14 may be used as the first weight loading. Also the spindle may be spring loaded instead of by weights.
Patent GB-514361-A (GB)
Title: Improvements in and relating to amplifying circuits
IPC: H03G11/02
Filed: 1938-01-29
Abstract: 514,361. Automatic volume control. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 29, 1938, No. 2907. Void. Convention date, Jan. 30, 1937. [Class 40 (v)] For limiting large signal amplitudes or suppressing small, a double diode rectifier is used as an amplitude-responsive resistance. For the limitation of large signals in a line a, a<1>, c, c<1>, Fig. 1, a series resistance R is followed by a shunt transformer T1, the tapped secondary of which has its two portions shunted by the biased-back diodes I, II of a double diode D which become conducting at a predetermined signal amplitude. For suppressing signals of small amplitude a series transformer T, Fig. 4, shunted by diodes D, is followed by a shunt resistance R. In a modified limiting arrangement, Fig. 6, signals passing a line l, l<1> containing adjustable resistances R1, R2 are opposed by signals in the branch 2, 2<1>, 3, 3<1> when the biassedback diodes D become conducting for signals of above a predetermined amplitude. The diodes D may be arranged in the feed-back path of an amplifier V, Fig. 9, so that negative feed-back sets in when the diodes become conducting. The diodes may be provided with independently variable sources of grid bias and variable anode. resistances for accurate matching.
Patent GB-130416-A (GB)
Title: Improvements in and relating to Internal Combustion Engines.
Inventor: ELLOR JAMES EDWIN
IPC: F02B75/32
Filed: 1918-02-19
Abstract: 130,416. Ellor, J. E., and Fowler, Sir H. Feb. 19, 1918. Compression engines; driving-gear.-A pair of co-axial pistons is rigidly secured together and connected by a rod to an eccentric on the driving- shaft. In the construction shown in Fig. 2, three pairs of pistons are disposed in radial cylinders and are connected by rods d<1>, d<4>, d<5> to a single eccentric f on a main driving-shaft g. The inner ends of the rods are formed with rings f<1>, f<4>, f<5> mounted on a ball or roller bearing on the eccentric f. An engine having one pair of co-axial cylinders is described. Specification 130,414 is referred to.
Patent GB-1124194-A (GB)
Title: Improvements in or relating to device for adjusting the position of the ingot guilding elements in the secondary cooling zone of a continuous metal casting installation
Inventor: BUTKEVICH VLADIMIR ALEXANDROVI
IPC: B22D11/128
Filed: 1967-01-19
Abstract: 1,124,194. Continuous casting. GOSUDARSTVENY SOJUZNY INSTITUT PROJEKTIROVANYA METALLOURGITCHESKIKH - ZAVODOV, and CENTRALNY NAOUTCHNO - ISSLEDOVATELSKY INSTITUT TCHORNOY METALLOURGIY "I. P. SARDINE ". 19 Jan., 1967, No. 2940/67. Heading B3F. Guide sections 4, bearing rolls 5 for co-operation with rolls 3 of fixed sections 2 for guiding a cast strand 1 in a cooling zone, are adjustable by hydraulic jacks 8 to accommodate differentlysized strands. Sleeves 11 are rotated, by way of chains and sprockets 13, 13a, 20, by a motor 23 so that nuts 10 keyed inside them are thus rotated to move to a desired position on threads 9 on rods 6 of the jack pistons 7. This determines the spacing between the guide rolls 3 and 5 when the jacks are operated, since the pistons 7 can move towards the strand 1 only until the nuts 10 abut shoulders 17 on the jack cylinders as shown. By selsyn equipment 24, 26, the nut positions are indicated by a pointer 27 and the motor 23 is operated by remote control, e.g. stopped automatically by the receiver 26.
Patent GB-877785-A (GB)
Title: Improvements in or relating to overthrow shovelling machines
IPC: E02F3/352
Filed: 1958-01-29
Abstract: 877,785. Shovelling machines. PELZ, E., and METZNER, H. Jan. 29, 1958, No. 2953/58. Class 68(1). On the rocker arms 4 of an overthrow shovelling machine are two sets of trunnions 8, 51 of which the trunnions 5 engage in guides 11 as the rocker arms start to pivot about rollers 8 on the turntable of the chassis of the machine as the shovel commences to move from a loading to a discharge position. As the rocker arms roll back on the tracks 6 on the turntable the rocker arms first break contact with the rollers 8, then the trunnions 5 leave the guides 11 and finally the trunnions 51 engage in bearings 3 and the rocker arms pivot in this bearing blocks as the shovel moves to the rear discharge position.
Patent GB-348060-A (GB)
Title: Improvements in and relating to processes for preventing the caking of salts
IPC: B01J2/20
Filed: 1930-01-28
Abstract: The caking of salts, such as fertilizing salts, is prevented by converting the finely divided salt into coarser grains by subjecting the finely divided salt, without added binder, to the action of pressure in an extrusion press, with or without heating or cooling, and breaking up the extruded cords by the jerky action of the press or by cutting members.  The granules so formed may be reconverted into fine grains or powder.ALSO:The caking of salts, such as fertilizing salts, is prevented by converting the finely divided salt into coarser grains by subjecting the finely divided salt, without added binder, to the action of pressure in an extrusion press, with or without heating or cooling, and breaking up the extruded cords by the jerky action of the press or by cutting members.  The granules so formed may be reconverted into fine grains or powder.ALSO:The caking of salts, such as fertilizing salts, is prevented by converting the finely divided salt into coarser grains by subjecting the finely divided salt, without added binder, to the action of pressure in an extrusion press, with or without heating or cooling, and breaking up the extruded cords by the jerky action of the press or by cutting members.  The non-caking granules so formed may be reconverted into fine grains or powder which is also non-caking.
Patent GB-501627-A (GB)
Title: Improved spoon for administering medicine
IPC: A61J7/00
Filed: 1938-01-31
Abstract: 501,627. Spoons. ALI, H. H. Jan. 31, 1938, No. 3013. [Class 128] A spoon for administering medicine has a flat, imperforate cover plate adapted to open at the front end. The opening portion may comprise a hinged flap 3 opened by a spring 5 running in a cover 10 and retracted by a press button 6. Alternatively the spoon may have parallel sides and the cover may slide in grooves therein, on movement of a stud on the end nearest the handle of the spoon.
Patent GB-1092473-A (GB)
Title: Improvements relating to ceramic ware
Inventor: MIDWINTER WILLIAM ROY
IPC: C03C17/32
Filed: 1965-01-23
Abstract: A method of making a food-receiving or supporting article of ceramic ware, e.g. casseroles, soup tureen, pie dish with a polytetrafluoroethylene coating includes the step of forming at least on a portion of the surface thereof an impervious and non-smooth base, and coating the base with polytetrafluoroethylene to form a non-stick coating thereon.  The impervious, non-smooth base may comprise a glaze or frit of a particle size and given a firing time such as to form a non-smooth layer.  Alternatively a smooth layer may be roughened.  The polytetrafluoroethylene may be in a plurality of layers.  In Example 1, the glaze comprises borax, silica, stone, calcium carbonate, china clay, bisilicate and is sprayed in liquid form on to the article.  The external surfaces of the ware may be glazed and coloured.  The polytetrafluoroethylene may be mixed with water and pigment, and sprayed on, or, if a flat or saucer-like article is to be coated, may be dripped or fed on to the article and distributed by centrifugal force as the article is spun.  After drying at elevated temperature the complete article may be fired to cure the polytetrafluoroethylene. In Example II a conventional glaze is applied and roughened by shot-blasting.  In Example III a first layer of a chromic, phosphoric acid mixture with polytetrafluoroethylene is applied by spraying to the non-smooth glaze layer, fired and a second layer comprising polytetrafluoroethylene with a stain or pigment in, say, toluene is applied and fired. missing page 184ALSO:A method of making a food receiving or supporting article of ceramic ware, e.g. casseroles, soup tureen, pie dish with a polyetetrafluoroethylene coating includes the step of forming at least on a portion of the surface thereof an impervious and non-smooth base, and coating the base with polytetrafluoroethylene to form a non-stick coating thereon.  The impervious, non-smooth base may comprise a glaze or frit of a particle size and given a firing time such as to form a non smooth layer.  Alternatively a smooth layer may be roughened.  The polytetrafluoroethylene may be in a plurality of layers.  In Example 1, the glaze comprises borax, silica, stone, calcium carbonate, china clay, bisilicate and sprayed in liquid form onto the article.  The external surfaces of the ware may be glazed and coloured.  The polytetrafluoroethylene may be mixed with water and pigment, and sprayed on, or, if a flat or saucer-like article is to be coated, may be dripped or fed on to the article and distributed by centrifugal force as the article is spun.  After drying at elevated temperature the complete article may be fired to cure the polytetrafluoroethylene.  In Example II a conventional glaze is applied and roughened by shot-blasting.  In Example III a first layer of a chromic, phosphoric acid mixture with polytetrafluoroethylene is applied by spraying to the non-smooth glaze layer, fired and a second layer comprising polytetrafluoroethylene with a stain or pigment in say toluene is applied and fired.
Patent GB-1531472-A (GB)
Title: Device for trapping fringe yarns in a circular knitting machine
IPC: D04B9/10
Filed: 1975-01-24
Abstract: 1531472 Knitting machines WILDT MEL LOR BROMLEY Ltd 22 Dec 1975 [24 Jar 1975] 3122/75 Heading D1C In a circular, e.g. cylinder and dial, knitting machine with a non-knit section a device for trapping temporarily the cut fringe yarns 21, 22 is mounted on the needle cylinder in the non-knit section immediately following the last needle 2 to knit and/or immediately before the first needle to knit, the device comprising a fixed jaw 13 and a movable jaw 11 resiliently biassed as by a spring 18 against the fixed jaw and movable out of contact therewith by a mechanism 15, 16 operated by a cam 20 so as to allow insertion/ release of a yarn.